Index: firmware/App/Services/FPGA.h
===================================================================
diff -u -reb877ae36c28eb83553ee11ccccf42e2c4a5b4d2 -rad3acf79a6b0fa54234cc3b70b26600790d61500
--- firmware/App/Services/FPGA.h	(.../FPGA.h)	(revision eb877ae36c28eb83553ee11ccccf42e2c4a5b4d2)
+++ firmware/App/Services/FPGA.h	(.../FPGA.h)	(revision ad3acf79a6b0fa54234cc3b70b26600790d61500)
@@ -1,38 +1,110 @@
-/**************************************************************************
- *
- *  Copyright (c) 2019-2019 Diality Inc. - All Rights Reserved.
- *
- *  THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
- *  WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
- *
- *  @file FPGA.h
- *
- *  @date 21-Oct-2019
- *  @author S. Nash
- *
- *  @brief header file for FPGA Interface service.
- *
- **************************************************************************/
+/**************************************************************************
+*
+* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+*
+* THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
+* WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
+*
+* @file FPGA.h
+*
+* @author (last) Sean Nash
+* @date (last) 14-Oct-2020
+*
+* @author (original) Dara Navaei
+* @date (original) 05-Nov-2019
+*
+***************************************************************************/
+
+#ifndef __FPGA_H__
+#define __FPGA_H__
+
+#include "HDCommon.h"
+#include "Interrupts.h"
+
+/**
+ *  @defgroup FPGA FPGA
+ *  @brief FPGA service module.
+ *  Maintains latest sensor readings at priority task interval.  Updates actuator
+ *  states at priority task interval.
+ *
+ *  @addtogroup FPGA
+ *  @{
+ */
+
+// ********** public definitions **********
+
+// ********** public function prototypes **********
+
+void initFPGA( void );
+void execFPGAIn( void );
+void execFPGAOut( void );
+SELF_TEST_STATUS_T execFPGATest( void );
+
+void signalFPGAReceiptCompleted( void );
+void signalFPGATransmitCompleted( void );
+
+void getFPGAVersions( U08 *Id, U08 *Maj, U08 *Min, U08 *Lab );
+
+void setAlarmAudioState( ALARM_PRIORITY_T state, U32 volumeLevel );
+
+F32 getFPGABloodFlowSignalStrength( void );
+F32 getFPGADialysateFlowSignalStrength( void );
+
+F32 getFPGABloodFlow( void );
+F32 getFPGADialysateFlow( void );
+
+U16 getFPGABloodPumpHallSensorCount( void );
+U08 getFPGABloodPumpHallSensorStatus( void );
+U16 getFPGADialInPumpHallSensorCount( void );
+U08 getFPGADialInPumpHallSensorStatus( void );
+U16 getFPGADialOutPumpHallSensorCount( void );
+U08 getFPGADialOutPumpHallSensorStatus( void );
+
+U32 getFPGAArterialPressure( void );
+U16 getFPGAVenousPressure( void );
+U16 getFPGABloodPumpOcclusion( void );
+U16 getFPGADialInPumpOcclusion( void );
+U16 getFPGADialOutPumpOcclusion( void );
+
+void getFPGAAccelAxes( S16 *x, S16 *y, S16 *z );
+void getFPGAAccelMaxes( S16 *xm, S16*ym, S16*zm );
+void getFPGAAccelStatus( U16 *cnt, U16 *accelFPGAFaultReg );
+
+void getFPGAAirTrapLevels( BOOL *airAtLower, BOOL *airAtUpper );
+
+void setFPGAValvesControlMode( U16 bits );
+U16 getFPGAValvesStatus( void );
+
+BOOL getFPGAFluidLeakState( void );
+
+void setFPGAValveDialyzerInletPosition( S16 setPoint );
+S16 getFPGAValveDialyzerInletPosition( void );
+U16 getFPGAValveDialyzerInletCurrentCounts( void );
+
+void setFPGAValveDialyzerOutletPosition( S16 setPoint );
+S16 getFPGAValveDialyzerOutletPosition( void );
+U16 getFPGAValveDialyzerOutletCurrentCounts( void );
+
+void setFPGAValveBloodVenousPosition( S16 setPoint );
+S16 getFPGAValveBloodVenousPosition( void );
+U16 getFPGAValveBloodVenousCurrentCounts( void );
+
+void setFPGAValveBloodArterialPosition( S16 setPoint );
+S16 getFPGAValveBloodArterialPosition( void );
+U16 getFPGAValveBloodArterialCurrentCounts( void );
+
+// The PWM functions are only used during debugging
+#ifdef DEBUG_ENABLED
+    void setFPGAValveDialyzerInletPWM( U16 count );
+    U16 getFPGAValveDialyzerInletPWM( void );
+    void setFPGAValveDialyzerOutletPWM( U16 count );
+    U16 getFPGAValveDialyzerOutletPWM( void );
+    void setFPGAValveBloodVenousPWM( U16 count );
+    U16 getFPGAValveBloodVenousPWM( void );
+    void setFPGAValveBloodArterialPWM( U16 count );
+    U16 getFPGAValveBloodArterialPWM( void );
+#endif
+
+/**@}*/
 
-#ifndef __FPGA_H__
-#define __FPGA_H__
-
-#include "Common.h"
-#include "Interrupts.h"
-
-// ********** public definitions **********
-
-// ********** public function prototypes **********
-
-void initFPGA( void );
-void execFPGAIn( void );
-void execFPGAOut( void );
-SELF_TEST_STATUS_T execFPGATest( void );
-
-void signalFPGAReceiptCompleted( void );
-void signalFPGATransmitCompleted( void );
-
-U16 getFPGAStatus( void );
-void setFPGAControl( U16 ctrl );
-
 #endif